Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
EasyIn the Ellingham diagram,the plot is drawn between:
- Atemperature and $\Delta H^{\circ}$
- Btemperature and $\Delta G^{\circ}$
- Cpressure and $\Delta S^{\circ}$
- Dtemperature and $\Delta E^{\circ}$
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Similar Questions
In the electrolysis of $Al_2O_3$ by the Hall-Heroult process,which of the following statements is correct?
Medium
View SolutionIdentify the metal which is not common to German silver and brass.
DifficultAP EAMCET 2019
View SolutionMatch List-$I$ (Substances) with List-$II$ (Processes) used for their production.
List-$I$ (Substances) List-$II$ (Processes) $(a)$ Sulphuric acid $(i)$ Haber process $(b)$ Steel $(ii)$ Bessemer process $(c)$ Sodium hydroxide $(iii)$ Leblanc process $(d)$ Ammonia $(iv)$ Contact process
Choose the correct option for $a-b-c-d$.
| List-$I$ (Substances) | List-$II$ (Processes) |
|---|---|
| $(a)$ Sulphuric acid | $(i)$ Haber process |
| $(b)$ Steel | $(ii)$ Bessemer process |
| $(c)$ Sodium hydroxide | $(iii)$ Leblanc process |
| $(d)$ Ammonia | $(iv)$ Contact process |
Choose the correct option for $a-b-c-d$.
Medium
View SolutionThe alloy,which contains $95 \%$ aluminium and small amounts of copper,magnesium and manganese is . . . . . .
Match the following:
List-$I$ List-$II$ $A. Al_2O_3 + 2NaOH + 3H_2O \rightarrow 2Na[Al(OH)_4]$ $I. \text{Roasting}$ $B. Ni(CO)_4 \xrightarrow{230^{\circ}C} Ni + 4CO$ $II. \text{Calcination}$ $C. Fe_2O_3 \cdot 3H_2O \xrightarrow{\Delta} Fe_2O_3 + 3H_2O$ $III. \text{Vapour phase refining}$ $D. 2PbS + 3O_2 \rightarrow 2PbO + 2SO_2$ $IV. \text{Electrolysis}$ $V. \text{Leaching}$
The correct answer is:
| List-$I$ | List-$II$ |
| $A. Al_2O_3 + 2NaOH + 3H_2O \rightarrow 2Na[Al(OH)_4]$ | $I. \text{Roasting}$ |
| $B. Ni(CO)_4 \xrightarrow{230^{\circ}C} Ni + 4CO$ | $II. \text{Calcination}$ |
| $C. Fe_2O_3 \cdot 3H_2O \xrightarrow{\Delta} Fe_2O_3 + 3H_2O$ | $III. \text{Vapour phase refining}$ |
| $D. 2PbS + 3O_2 \rightarrow 2PbO + 2SO_2$ | $IV. \text{Electrolysis}$ |
| $V. \text{Leaching}$ |
The correct answer is:
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